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MATH SOLVE
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A rectangular picture has an area of 30 square inches. The length of the picture is 1 inch more than...
5 months ago
Q:
A rectangular picture has an area of 30 square inches. The length of the picture is 1 inch more than the width. What is the perimeter of the picture?
Accepted Solution
A:
L = W + 1 (inches)
Area = A = L*W = 30 sq in., so (W)*(W+1) = 30
W^2 + W - 30 = 0 = (W-5)(W+6) = 0, so W = 5 and W = -6. Discard the negative W.
P=2W + 2L = 2(5 in) + 2(6 in) = 22 inches